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Dense Fog Alert: Drive with Caution This Morning in Southwest Ohio

A dense fog alert has been issued for southwest Ohio, urging motorists to drive with caution due to low visibility until 9:00 AM UTC (5:00 AM EDT).

Staff Writer
10/12/2026 · Clark County edition

Motorists in southwest Ohio are advised to prepare for patchy dense fog with visibility of one quarter mile or less this morning, according to a Special Weather Statement issued by the National Weather Service (NWS) Wilmington OH.

This advisory is effective immediately, October 12, 2026, and is expected to continue until 9:00 AM UTC (5:00 AM EDT). The affected areas include Mason, Hardin, Mercer, Auglaize, Darke, Shelby, Logan, Miami, Champaign, Clark, Montgomery, Greene, Warren, Clinton, Brown, and Highland counties.

Drivers should be prepared for rapid changes in visibility. The NWS recommends allowing for greater distances between vehicles, using low beam headlights, and allocating extra time to reach destinations. Exercise increased caution when traveling during these conditions.

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